Coltene SciCan BRAVO G4, Техническое и сервисное руководство, Страница: 24 / 116

Sterilizers Bravo G4
- TECHNICAL MANUAL
22
FUNCTIONING EN
4.5. 2nd VACUUM PHASE
This phase of the cycle allows the chamber pressure to drop below the value of 1.00 bar reached during the 1
st
PRESSURE RISE, by discharging steam through solenoid valve EV1 and draining condensate through the solenoid
valve EV3 connected to the chamber filter.
When the value of 0.10 bar is reached, with the activation of solenoid valve EV4, the pressure continues dropping
until reaching the value of - 0.80, by means of the vacuum pump, already activated at the beginning of the 2
nd
VACUUM PHASE.
In order to make it easier to reach the value of - 0.80 bar, solenoid valve EV2 is also activated for 5”.
2 st VACUUM PHASE - component activation status
ST
AT
U
S
EV1
High
drain
(N.O.)
EV2
Air inlet
(N.C.)
EV3
Low drain
(N.C.)
EV4
Drain
deflector
(3V)
EV5
Chamber
air inlet
(N.C.)
FAN
W
AT
ER
PU
MP
–
EV6
VA
CUUM
PU
MP
C
H
AMBER
T
U
BE
BUNDL
E H
EA
TI
NG
EL
EMEN
T
G
ENE
RA
TO
R
H
EAT
IN
G
EL
EMEN
T
Hydraulic Circuit
pressure
compens.
On
closed
On
open
Off
closed
On (1)
Off
closed
ON OFF ON ON OFF
Direct steam
drainage
On
closed
Off
closed
Off
closed
Off (2)
Off
closed
ON OFF ON ON ON
Direct
condensate
drain
On
closed
Off
closed
On
open
Off (2)
Off
closed
ON OFF ON ON ON
Decrease
from 0.10
to - 0.80 bar
Off
open
Off
closed
On
open
On (1)
Off
closed
ON OFF ON ON ON
134° C B Cycle - 4 mins.
(
ROW versions only)
132°C/270°F Hollow Wrapped Cycle - 4 mins.
(
US/CA versions only)